BigSpeed Secure Socket Library Version 2 descriptions BigSpeed Secure Socket Library is an ActiveX control that dramatically simplifies & accelerates the development of proprietary communication solutions over the Internet. It implements a flexible message-oriented protocol on top of a single TCP connection. The transfered data are scrambled using on-the-fly 128-bit AES encryption with random session keys without need of SSL certificates. The security is provided in two different modes: symmetric encryption with shared secret key & asymmetric encryption with 1024-bit public/private keys. Transport level authentication is available with optional digital fingerprints or secret keys. Building a virtual private application network is just a matter of setting the same crypto key on two or more sites. BigSpeed Secure Socket Library can be used both on client & server side with centralized management of all connections. Information is exchanged through typed data packets identified by a command code. The library takes care of all low-level tasks: packetizing/depacketizing compression/decompression encryption/decryption sending receiving buffer congestion & flow control. There is support for automatic DNS name resolution & SOCKS proxy servers. BigSpeed Secure Socket Library utilizes an elegant event-driven paradigm for easy integration into Windows applications. A special attention is paid to provide responsive user interface while maintaining maximum bandwidth efficiency. Carefully designed set of properties methods & events offers great flexibility to develop innovative communication software. Sample applications for chat alert messaging & file transfer are included in Visual Basic 6 Visual Basic . NET Visual C++ . NET & Delphi 7.